As far as I know any prohormone or steroid will make one fail a drug test. They test for test:epitest ratio and any exogenous hormone will decrease the ratio.
Different steroids with different esters will have different clearance times due to varying half-lives. I'm not certain of exact numbers but if you dig around you'll find them and be able to time cycles so as to avoid testing positive.
I'm an honest person though so I wave my index finger at you right now. If you're gonna juice go compete in untested events and leave he tested ones for the natural guys. It really irks me when juicers enter natural contests.